body,html {
    height: 100%;
}
body {
    background-color: #f4f4f4;
}
.mycontent {
    position: relative;
    top: 44px;
    bottom: 50px;
    height: 100%;
    .leftBox {
        width: 80px;
        float: left;
        // background-color: pink;
        position: relative;
        height: 100%;
        a {
            display: block;
            height: 45px;
            line-height: 45px;
            text-align: center;
            border-right: 1px solid #ccc;
            border-bottom: 1px solid #ccc;
            font-size: 14px;
            color: red;
        }
        a.active {
            background-color: orange;
        }
    }
    .rightBox {
        margin-left: 90px;
        // background-color: red;
        height: 100%;
        position: relative;
        .ulBox {
            background-color: #fff;
        }
        li {
            width: 33.33%;
            float: left;
            padding: 5px;
            a {
                display: block;
                text-align: center;
                img {
                    width: 100%;
                    display: block;
                    margin: 0 auto;
                    margin-bottom: 5px;
                }
                span {
                    font-size: 14px;
                }
            }
        }
    }
}